Model Comparison

Nemotron 3 Ultra (550B A55B) vs GLM-5.1Which is better in 2026?

GLM-5.1 shows notably better performance in the majority of benchmarks.

Verdict: Nemotron 3 Ultra (550B A55B) vs GLM-5.1 — which is better?

Nemotron 3 Ultra (550B A55B) (by NVIDIA) and GLM-5.1 (by Zhipu AI) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Nemotron 3 Ultra (550B A55B) outperforms in 2 benchmarks (GPQA, IMO-AnswerBench), while GLM-5.1 is better at 5 benchmarks (BrowseComp, Finance Agent v2, GDPval-AA, Humanity's Last Exam, TAU3-Bench). GLM-5.1 shows notably better performance in the majority of benchmarks.

Choose Nemotron 3 Ultra (550B A55B) if…

  • you want the most recent training data — it shipped Jun 2026

Choose GLM-5.1 if…

  • you want the strongest raw capability — it leads on 5 of 7 shared benchmarks

Performance Benchmarks

Comparative analysis across standard metrics

7 benchmarks

Nemotron 3 Ultra (550B A55B) outperforms in 2 benchmarks (GPQA, IMO-AnswerBench), while GLM-5.1 is better at 5 benchmarks (BrowseComp, Finance Agent v2, GDPval-AA, Humanity's Last Exam, TAU3-Bench).

GLM-5.1 shows notably better performance in the majority of benchmarks.

Fri Jul 17 2026 • llm-stats.com

Arena Performance

Human preference votes

Model Size

Parameter count comparison

204.0B diff

GLM-5.1 has 204.0B more parameters than Nemotron 3 Ultra (550B A55B), making it 37.1% larger.

NVIDIA
Nemotron 3 Ultra (550B A55B)
550.0Bparameters
Zhipu AI
GLM-5.1
754.0Bparameters
550.0B
Nemotron 3 Ultra (550B A55B)
754.0B
GLM-5.1

Context Window

Maximum input and output token capacity

Only GLM-5.1 specifies input context (200,000 tokens). Only GLM-5.1 specifies output context (128,000 tokens).

NVIDIA
Nemotron 3 Ultra (550B A55B)
Input- tokens
Output- tokens
Zhipu AI
GLM-5.1
Input200,000 tokens
Output128,000 tokens
Fri Jul 17 2026 • llm-stats.com

License

Usage and distribution terms

Nemotron 3 Ultra (550B A55B) is licensed under OpenMDW License v1.1, while GLM-5.1 uses MIT.

License differences may affect how you can use these models in commercial or open-source projects.

Nemotron 3 Ultra (550B A55B)

OpenMDW License v1.1

Open weights

GLM-5.1

MIT

Open weights

Release Timeline

When each model was launched

Nemotron 3 Ultra (550B A55B) was released on 2026-06-04, while GLM-5.1 was released on 2026-04-07.

Nemotron 3 Ultra (550B A55B) is 2 months newer than GLM-5.1.

Nemotron 3 Ultra (550B A55B)

Jun 4, 2026

1 months ago

1mo newer
GLM-5.1

Apr 7, 2026

3 months ago

Knowledge Cutoff

When training data ends

Nemotron 3 Ultra (550B A55B) has a documented knowledge cutoff of 2025-09-30, while GLM-5.1's cutoff date is not specified.

We can confirm Nemotron 3 Ultra (550B A55B)'s training data extends to 2025-09-30, but cannot make a direct comparison without GLM-5.1's cutoff date.

Nemotron 3 Ultra (550B A55B)

Sep 2025

GLM-5.1

—

Outputs Comparison

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Key Takeaways

NVIDIA
Higher GPQA score (87.0% vs 86.2%)
Higher IMO-AnswerBench score (92.3% vs 83.8%)
Zhipu AI
Larger context window (200,000 tokens)
Higher BrowseComp score (79.3% vs 44.4%)
Higher Finance Agent v2 score (44.8% vs 37.5%)
Higher GDPval-AA score (42.7% vs 39.4%)
Higher Humanity's Last Exam score (52.3% vs 37.4%)
Higher TAU3-Bench score (70.6% vs 22.6%)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Nemotron 3 Ultra (550B A55B) and GLM-5.1 side-by-side, then vote on the output you prefer.

Nemotron 3 Ultra (550B A55B)
✓ Preferred
GLM-5.1
Open in Playground
AI Model Comparison Table
Feature
NVIDIA
Nemotron 3 Ultra (550B A55B)
Zhipu AI
GLM-5.1

FAQ

Common questions about Nemotron 3 Ultra (550B A55B) vs GLM-5.1.

Which is better, Nemotron 3 Ultra (550B A55B) or GLM-5.1?

GLM-5.1 shows notably better performance in the majority of benchmarks. Nemotron 3 Ultra (550B A55B) is made by NVIDIA and GLM-5.1 is made by Zhipu AI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Nemotron 3 Ultra (550B A55B) compare to GLM-5.1 in benchmarks?

Nemotron 3 Ultra (550B A55B) scores RULER: 94.7%, IMO-AnswerBench: 92.3%, PinchBench: 90.0%, LiveCodeBench v6: 89.0%, GPQA: 87.0%. GLM-5.1 scores Vending-Bench 2: 100.0%, AIME 2026: 95.3%, HMMT 2025: 94.0%, GPQA: 86.2%, IMO-AnswerBench: 83.8%.

What are the context window sizes for Nemotron 3 Ultra (550B A55B) and GLM-5.1?

Nemotron 3 Ultra (550B A55B) supports an unknown number of tokens and GLM-5.1 supports 200K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Nemotron 3 Ultra (550B A55B) and GLM-5.1?

Key differences include licensing (OpenMDW License v1.1 vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes Nemotron 3 Ultra (550B A55B) and GLM-5.1?

Nemotron 3 Ultra (550B A55B) is developed by NVIDIA and GLM-5.1 is developed by Zhipu AI.

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